docs: def _resolve_path(self, container: Container, filepath: str) -> str:
          """
          Ensures that relative paths are transformed into absolute paths.
          """
          bug = self.__mgr_bug[container.bug]
          filepath_orig = filepath
  
          if not os.path.isabs(filepath):
              filepath = os.path.join(bug.source_dir, filepath)
              logger.debug("converted relative path to absolute path: %s -> %s",
                           filepath_orig, filepath)
  
          return filepath